Jambs naylob



LNAYLOR, Jr & E. BROOKS.

Bolt Works for Safe and Vault Doors.

NO. 165,752. PatentedJu|,y20,1875.

JAMES NAYLOR, JR, AND EDWARD BROOKS, OF ROCHESTER, NEW YORK.

Ii lPROVEidENT IN BOLT=WORKS FQR SAFE AND VAULT DOORS.

Specification forming part of Letters Patent No. M35352, dated July 20,1875; application filed May 26, 1875.

To all whom it may concern Be it known that we, JAMES NAYLOR, J12, andEDWARD BRooKs, both of the city of Rochester, in the county of Monroeand State of New York, have invented a certain new and usefulImprovement in Safe and Vault Doors; and we do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to the accompanyingdrawings, in which- Figure 1 is an elevation of the inside of asafe-door, showing our improvement applied thereto. Fig. 2 is across-section in line a? at of Fig. 1. Fig. 3 is a detail view.

Our improvement relates to the means for looking or securing the doorsof safes and vaults by the use of plates attached upon the inner face ofthe door, and sliding over the joint between the door and jamb. Suchplates have before been used, and we therefore make no claim to them,broadly; but our invention consists in the combination and arrangementof parts hereinafter described for operating and locking the plates, aswill be more fully set forth.

A represents the door of a safe, which is of usual construction. B isthe lock, which is situated centrally on the inner face of the door, andmay be of any of the known kinds. 0 G O O are the four sliding plates,which constitute the door-bolts, situated on the outer edges of theinner face of the door, as shown clearly in Fig. 1, thus forming arectangle or square. When the door is shut these plates are made to moveoutward across the joint between the door and jamb, as shown in Fig. 2,thus accomplishing the double object of looking the door and of closingthe joint against the action of fire and heat. These plates differ fromthose ordinarily used in this respect, viz., the divisions or joints a abetween them come midway of the length and width of the door, instead ofat the ends, each section thus forming an elbow which is closed at thecorner. By this means we obviate the square blanks or notches at thecorners which are produced in ordinary safes when the plates are thrownout, and we also avoid the danger of the bending or warping of thecorners, caused by striking the jamb when the corners are thinned byhalving together. The ends of the sections at the joints a a may behalved together so as to leave no opening when the plates are expanded,and these joints, coming in the center, are not subject to bending orwarping. The plates are provided with angular slots 1) Z), in line withthe movement of the plates, through which slots pass headed screws 0 c,which hold the plates in place. The plates are guided in their movementsby these slots and screws, so as to be thrown out and in, in properposition, by a single connection attached to each.

D is an annular ring, which surrounds the lock B, and has a free turningmovement. It is held by headed screws cl (1, which pass througheccentric slots f f. E E E E are four connections, pivoted at one end tothe ring, and at the other end to the plates 0 O O 0, about midway oftheir length. These connec tions stand somewhat tangentially, or in suchposition as to operate the plates easily when the ring is turned. 9 is agear-segment upon one side of the ring D. h is a pinion on thespindle-shaft, which engages with the segment. G is a sliding bolt,resting at the inner end against the lock-bolt, and having at the outerend a loop or stirrup, i, which embraces the pinion h, and is providedwith a rack-gear, k, which meshes with the pinion. The pinion and loopare retained in place by a bearing, on, fastened to the door.

To operate the mechanism it is only necessary to turn the spindle p. Thepinion h, being geared with the ring D and stirrup-bolt G, will operateboth simultaneously to throw out the plates and withdraw the end of thestirrup-bolt from the lock, so that the lockbolt may be thrown out tomeet it. In this case the door is locked, as shown in Fig. 2. Thereverse action withdraws the plates and throws the stirrup-bolt Grbackinto or against.

the lock-case. By this means the stirrup-bolt G is automatic orself-actin g, being thrown by the pinion in unison with the motion ofthe ring D, and as it is connected with said ring by the gears h, k, andy, it forms an intermediate device connected with the look, by which thedoor'bolts are locked out.

By the use of the simple stirrup-bolt G we save the cost of acomplicated mechanism, such s is now used with bolt-works of this class,and greatly simplify the operation of the parts.

Another advantage of our invention is the few parts necessary to use.and their extreme simplicity, by which they can be applied upon mostfire-proof and burglar-proof safes without the removal of the safe-lock.This lock is usually situated centrally, and the ring D can be fittedover it without trouble, while the stirrup-bolt, connections, and platesrest on uncovered spaces of the door, and the whole can be attached bysimply screwing to the inner face of the door.

The complex mechanism heretofore in use, so far as we are aware, cannotbe adapted to the look without its removal.

Having thus described our invention, We do not claim, broadly, platessecured to the inner face of the safe-door, and shutting over the jambto lock the door; nor do we claim, broadly, arms for operating suchplates.

What we claim is- 1. The combination, with the lock B and ring D, of thestirrup-bolt Gr, connected with the ring through the medium of thepinion h and gears 70 g, and constituting an automatic shifting devicefor locking the door-bolts in position when the safe-lock is locked, asherein shown and described.

2. The toothed ring D, pinion h, stirrup'bolt G, connections E E, andelbow-plates (J (J, combined and arranged to operate in the manner andfor the purpose specified.

In witness whereof we have hereunto signed our names in the presence oftwo subscribing witnesses.

JAMES NAYLOR, JR. EDWARD BROOKS.

Witnesses:

R. F. OSGOOD, E. B. SooTT.

